[CRIU] [PATCH] files-reg: Rework strip_deleted

[Cyrill Gorcunov]

On Tue, Jul 28, 2015 at 02:57:36PM +0300, Pavel Emelyanov wrote:
> > 
> > That's the regular dcache code.
> > 
> > char *dentry_path(struct dentry *dentry, char *buf, int buflen)
> > {
> > 	char *p = NULL;
> > 	char *retval;
> > 
> > 	if (d_unlinked(dentry)) {
> > 		p = buf + buflen;
> > 		if (prepend(&p, &buflen, "//deleted", 10) != 0)
> 
> O_O Some time ago it was only "(deleted)". When has it changed?
> Or the "(deleted)" also means something?

Nope, it has been here for years as far as I remember.
2.6.32

char *dentry_path(struct dentry *dentry, char *buf, int buflen)
{
	char *end = buf + buflen;
	char *retval;

	spin_lock(&dcache_lock);
	prepend(&end, &buflen, "\0", 1);
	if (d_unlinked(dentry) &&
		(prepend(&end, &buflen, "//deleted", 9) != 0))
			goto Elong;
	if (buflen < 1)
		goto Elong;
	/* Get '/' right */
	retval = end-1;
	*retval = '/';

As far as I remember, I introduced this helper and when I've
been making it I marked "hey, look for other postfixes some
day" somewhere in my mind. And managed to forget :)